<html>

	<head>
		<title></title>
		<meta charset="UTF-8" />
		<link href="https://cdn.bootcss.com/bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet">/>
	</head>

	<body><div id="" style="margin-left: 40%;margin-top: 20%;">
		
	
		<form action="index.php" class="form-horizontal" method="post">

	

			<input type="password" name="password" placeholder="请输入密码" class="form-control"style="width: 200px;"/>
			<br />
			<input type="submit" name="" id="" value="登录" class="btn btn-primary"/>
		</form></div>
	</body>

</html>